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A307292
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Number of black-and-white colored (or proper magnetic) space groups in dimension n, not counting enantiomorphs.
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2
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OFFSET
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0,2
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LINKS
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R. L. E. Schwarzenberger, Colour symmetry, Bulletin of the London Mathematical Society 16.3 (1984): 216-229.
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FORMULA
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CROSSREFS
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For the case when enantiomorphs are counted see A307290.
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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